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l INVENTOR n ./lneyS ai lh g/ 'Patented Oct 5 (No Model.)

J. B. BROOMB.

'GQMELNEE LETTER B0X AND EooE BELL.

UNITEDv STATFS,l

PATENT Orricna @Josnrnsfnaooivrn or; oswneo, NEW YonK.

COMBINED vLETTER-BOX ANDKDOOR-BELL.

SPECIFICATION forming part of Letters Patent No. 350,410, dated october 5, 1886.

liplication nina April so, 1890. serai No. 200,104. (No man.)

To a/ZZ whom t may' concern:

Be it known that I, JOSEPH B. BRooMma citizen of the United States, and a resident of Oswego, in the countyof Oswego and State of New York,hav`e inventedcertain'new Vand useful Improvements in a Combined Letter- Box and Door-Bell; and I do hereby declare that thel followingis 'a full, clear,'and exact description of the invention, which will enable others skilled in the art to which it appertains to make and'use thesame, reference being had to the accompanying drawings, which form a part of this specitication, and in which- V Figure l is a front view of a portion of a door, showing bell-pull and door-plate, and indicating in dotted lines the letter and bellwire apertures.V Fig. 2 is a vertical section of the same, taken on line xx. Fig. 3 is a face view of the door-bell withthe gong re- Fig. 4 is a perspective View of the same. Fig. 5 :is a back view of the door-plate and its appurtenances. Fig. 6 is a vertical section of the same on line y y. Fig. 7 is a perspective View of the central cam of the bell.

Li ke'letters of reference indicate like parts throughout the seven iigures.-

My invention has relation to combined letter-boxes and door-bells; and it consists in the improved construction, arrangement, and combination of parts, as will be hereinafter fully described and claimed.

In the drawings,l A represents a portion of a door; B, the bell-plate; C, the central post; D, the gong; E, the screw connecting the gong to said post; F, a four-spurred cam pivoted upon the central post; G, a pin for holding the cam in place; H, the hammer-carrying moved.

bar, pivoted to plate B; I, a spring connecting cam F with said bar; J, a post projecting from plate B; K, a bell-crank pivoted near the top of said post; L, the bell-pnll linked to said crank; M, the bell-pull plate; N, a post projecting from plate B; O, a bell-crank pivoted thereto; P, a wire leading from said crank through aperture Q in the door; It, a door plate; S, a lug upon the back of said plate, to

which wire P is attached; and T represents a frame attached to the door, to which the doorplate is hinged by its upper edge. The cam F is provided with a central oblong perforation, a, which allows said cam to have a sliding pivotal motion about theA post C. One spur, b, of said cam has a series of pins, o, projecting obliquely from its face. These pins serve for adjustably connecting one end of spring I to said cam. A second spur, d, of the cam coacts with the bell-crank K when the hammer U is actuated by the bell-pull. A third spur, e, has a lug, f, on the under side near its outer, end. This end coacts with the bell-crank O when the hammer U is actuated by raising the door-plate B. A fourth sp'nr, g, of the cam is formed at its outer end into teeth h h', which coact with a. projection, fi,

a pin, k, projecting obliquely from its face at one end, to which. pin one end of the spring I is connected. At the other end of said bar an S-shaped wire, Z, projects, bearing hammer U upon its free end. 'An oblong perforation, m, is formed in said bar, by which perforation the bar is pivoted upon an oblong-headed post, V, projecting from the plate B. The oblong perforation permits thebar to be placed upon said post, and then when the bar is turned into operative position the oblong head is at right angles to the oblong perforation and holds the bar in place. j The bcllplate B has projecting from its surface, aside from the posts above mentioned, a stud, a, for limiting theV rebound of the cam F, and a stud, o, for limiting the vrebound of the bar H. y. It also has an aperture, @formed therein at one side ofthe center, which provides fory thefree movement of both the lug f upon the spur e tand the lower arm of the bell-crank O.

The frame T, to which the door-plate is hinged. has a central opening which registers with the aperture W, and is provided near each 4end with a cross-piece, s, which is cut away on its under side. ing stays, z, pass under said cross-pieces, and are pivoted by their ends in lugs t, formed upon the back of said plate. These stays provide against wrenching the plate from its hinges when it is raised, and also limit its up- Ward motion, thereby preventing any strain on the wire from the bell. The letter-aperture W is covered by the door-plate on one side of the door, and opens on the other side just below the bell-plate. The respective partsv of the bell Two U-shaped slidare shown in the position of rest in the drawings, the tooth 7L of spur g engaging the projectionz' of bar II, and the cam F resting with the upper end of the perforation a against the post C. When the bell-pull is drawn, the bellcrank K acts against spur d and rotates the cam, the cam acts upon the hammer-carrying arm until tooth h passes out of engagement with projection t', when spring I throws the 1o hammer against the gono. Then upon releasing the bell-pull the same spring causes the other parts to return to their former position, the tooth h being permitted to pass projection z by the cam sliding upon its pivot. The aetion upon the cam by the bellpull is limited to that above described, giving the gong but one stroke at a single draw of the bell-pull; but the action by the door-plate is less limited. By lifting said plate the wire l), which 2o is attached thereto and to the bell-crank O, is

drawn out, said bell-crank causing the cam to rotate till both teeth thereof pass from engagement with projection t', thus giving two strokes to the gong. In this manner the bell is caused 2 5 to distinguish between mail-carrier and caller. Having thus described my invention, I claim and desire to secure by Letters Patent of the United Statesl. In a door-bell, a hammer-actuating cam 3o consisting of a metallic plate having an oblong central perforation and laterallyprojecting spurs, one of said spurs provided with teeth formed on its outer end, substantially as shown and described.

2. rlhe combination of a bellpull, a gong, aV

bell-plate provided with an aperture for said bell-pull, a post projecting from said plate, a bell-crank pivoted to the side of said post, a hammer-actuating cam having an oblong cen- 40 tral perforation and provided with laterallyprojecting spurs, a ham mer-carrying bar provided with a projection for engaging one spur of said cam, and a spring connecting said bar to another spur of said cam, substantially as shown and described.

3. The combination of a door-plate hinged at one edge, a wire connected thereto, a gong, a bell-plate, a post projecting from said plate, a bell-crank pivoted to said post, a hammeractuating cam rprovided with laterally-projecting spurs, one of which has teeth formed at its outer end, a hammer-carrying bar, and a spring connecting said bar to one spur of said cam, substantially as described and set forth.

4. The combination of a bell-pull, a doorplate hinged at one edge, a gong, a bell-plate, two posts projecting therefrom, a bell-crank pivotedto each post, one hammer-actuating cam having four laterally-projecting spurs,

-one provided with teeth at its outer end, an-

olher with adjusting-pins projecting from its face, a hammer-carrying bar, and one spring connecting said bar with the pin-carryi ng spur of the cam, substantially as described and set forth.

5. In a door-bell, a hammer-carrying bar having an S-shaped wire at one end, a pin projecting obliquely from the face ofthe bar at the other end, and a projection upon the side of said bar for engaging the hammeractuating cam, substantially as shown and described.

6. In a door-bell, an oblong-headed post projecting from the bell-plate, in combination with a hammer-carrying bar provided with an oblong perforation. by which it is pivoted to said post, substantially as described and set forth.

7. The combination of a plate-frame, a doorplate hinged to the upper edge of said frame, sliding stays, a door-bell, and a wire connecting the door-plate with the interior mechanism of said bell, substantially as described and set forth.

8. The combination of a frame provided with cross-pieces cut away on their under sides, a door-plate hinged to said frame and having perforated lugs formed upon its back, U -shaped wires pivoted in said lugs and forming sliding stays, a door-bell, and a wire having one end pivoted in, a lug upon said plate and the other connected with said bell, substantially as described and set forth.

In testimony that I claim the foregoing as my own I have hereunto affixed my signature in presence of two witnesses.

JOSEPH B. BROOME.

Witnesses:

WILLIAM LIND, LUcIUs J. CULvnn. 

